Application Of Integrated Geophysical Method To Exploring Copper And Polymetallic Deposit In The Western Xiaoniuqun Area

The western region of the Xiaoniuqun metallogenic belt belongs to the northern margin of the north China platform metallogenic region(?3),Wulashan-Jining-Fuxin archean?Yanshan period gold,silver,iron,copper,lead,zinc,graphite,muscovite metallogenic belt(?10),the middle part of dashuiqing-hot water gold and copper metallogenic belt(IV 107),the southeast of mingganshan-dashuiqing gold and copper metallogenic belt(?107-1),It is a favorable area for polymetallic mineralization.In the research area the outcropped lithology complex,the structure and dikes development.Previous achievements indicate that copper and polymetallic mineralization is controlled by faults,the contact region between basement and cover is the favorable part of mineralization and the NE fault structure and the intermediate-basic dikes control ore body.The paper researches ground high-precision magnetic measurement and time domain IP method.It determines the layer?structure framework and spatial distribution of the dikes by ground high-precision magnetic measurement;It finds out the spatial distribution of the Cu,Pb,Zn and so on..by the time domain IP method.The mainly work is described as follows:1.It centres on the xiaoniuqun-Sanjia anticlinorium,middle Jurassic new democracy acidic volcano rock layer thickens along the both sides.The cover of the anticlinorium core is denudation out.Old stratum of Cambrian and three Triassic granite outcropped in large area,Along the NE trending.the cover and the base is angular unconformity,The NE fault of the F1 and F2 is the boundary.In this region,dike rocks develops,Mainly granite porphyry and diorite,as the form of dike and stock produce.The distribution direction is controlled by NE fault2.there are two IP anomaly belts in the reseach area,located in the both sides of the xiaoniuqun-Sanjia anticlinorium were distributed in the zone of basement and cover contact,controlled by NE faults,the alteration of brass mineralization and mineralization in the surface are discoverd.By surface engineering and drilling engineering check in the last,it is proved that the effectiveness of the comprehensive geophysical prospecting method to find the copper polymetallic is prove...